Helical gear motor



FIG. 1 is a perspective view of a helical gear motor showing our new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side view in enlarge scale thereof; and,

FIG. 8 is a right side view in enlarge scale thereof.

The broken lines show portions of a helical gear motor that form no part of the claimed design. 

CLAIM The ornamental design for a helical gear motor, as shown and described. 